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testo 440 Humidity Kit with Bluetooth^®

Order-Nr. 0563 4404

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Intuitive: clearly structured measurement menu for long-term measurements as well as the parallel determination of humidity and air temperature in storage, refrigerated and work rooms and also in ventilation ducts
Precise: calculation of dew point, wet bulb temperature and absolute humidity
Convenient: wireless probe, internal data storage and USB port for data export
As multifaceted as your challenges themselves: the air velocity and IAQ measuring instrument can be expanded with a large portfolio of digital probes

Details

Product Description

Kit for carrying out measurements in storage, refrigeration and work rooms, in ventilation ducts and also on refrigeration systems and heat pumps. Keep the testo 440 air velocity and IAQ measuring instrument and the humidity/temperature probe with Bluetooth^® safely stowed away in the case. So you can get down to work straight away!

Products in set

testo 440 - Air velocity and IAQ measuring instrument

Order-Nr. 0560 4401
- Intuitive: clearly structured measurement menus for volume flow, degree of turbulence, cooling/heating output, mould detection and long-term measurement, such as CO₂
- Wireless: Bluetooth® probes for extra convenience when measuring and less cable clutter in the measuring case (please order probes separately)
Details
Humidity/temperature probe (digital) - with Bluetooth^®

Order-Nr. 0636 9731
- Intuitive: clearly structured measurement menu for long-term measurement and parallel determination of the relative humidity and air temperature in indoor areas
- Precise: calculation of wet bulb temperature, dew point and absolute humidity
Details

Delivery Scope

testo 440 air velocity and IAQ measuring instrument, 3 x AA batteries, USB cable and calibration protocol (0560 4401)
Humidity/temperature probe (Ø 12 mm) with Bluetooth^®* (consisting of humidity/temperature probe head and Bluetooth^® handle); 4 x AA batteries and calibration protocol (0636 9731)
Basic case for testo 440 and 1 probe

*Please do not use the probe in condensing atmospheres. For continuous application in high-humidity ranges> 80% RH at ≤ 30 °C for > 12 h> 60% RH at > 30 °C for > 12 hplease contact Testo Service or contact us via the Testo website.

Technical Data

testo 440 - Air velocity and IAQ measuring instrument

Order-Nr. 0560 4401

Temperature - NTC
Measuring range	-40 to +150 °C
Accuracy	±0.4 °C (-40 to -25.1 °C) ±0.3 °C (-25 to +74.9 °C) ±0.4 °C (+75 to +99.9 °C) ±0.5 % of mv (Remaining Range)
Resolution	0.1 °C

Temperature - NTC

Measuring range

-40 to +150 °C

Accuracy

±0.4 °C (-40 to -25.1 °C)

±0.3 °C (-25 to +74.9 °C)

±0.4 °C (+75 to +99.9 °C)

±0.5 % of mv (Remaining Range)

Resolution

0.1 °C

Temperature - TC Type K (NiCr-Ni)
Measuring range	-200 to +1370 °C
Accuracy	±(0.3 °C + 0.3 % of mv)
Resolution	0.1 °C

General technical data
Weight	250 g
Dimensions	154 x 65 x 32 mm
Operating temperature	-20 to +50 °C
Connectable probes	1 x digital probe with cable or 1 x Temperature NTC TUC, 1 x digital Bluetooth probe or testo Smart Probe, 1 x Temperature TC Type K
Product colour	black/orange
Battery type	3 AA mignon 1.5 V
Battery life	12 h (typically vane measurement)
Interface	Bluetooth®; USB
Storage temperature	-20 to +50 °C

Humidity/temperature probe (digital) - with Bluetooth^®

Order-Nr. 0636 9731

Temperature - NTC
Measuring range	-20 to +70 °C
Accuracy	±0.5 °C
Resolution	0.1 °C

Humidity - Capacitive
Measuring range	0 to 100 %RH
Accuracy	±2 %RH (5 to 90 %RH) ±0.03 %RH/K (k=1) long-term stability: ±1 %RH / year
Resolution	0.1 %RH

Humidity - Capacitive

Measuring range

0 to 100 %RH

Accuracy

±2 %RH (5 to 90 %RH)

±0.03 %RH/K (k=1)

long-term stability: ±1 %RH / year

Resolution

0.1 %RH

General technical data
Storage temperature	-20 to +60 °C
Weight	165 g
Dimensions	290 x 50 x 40 mm
Operating temperature	-5 to +50 °C
Diameter probe shaft	12 mm
Length probe shaft	140 mm
Product colour	black/orange
Battery type	4 x type AA batteries
Battery life	140 h
Data transfer	Bluetooth®

Probes

Comfort probes

Turbulence probe (digital), wired: for determining the degree of turbulence and draught risk according to EN ISO 7730 / ASHRAE 55 – measuring range 0 to +5 m/s, 0 to +50 °C

Order Number: 0628 0152

Lux probe (digital) for measuring illuminance, wired

Lux probe (digital), wired: for measuring illuminance in workplaces (e.g. offices, production areas) – measuring range 0 to 100,000 lux

Order Number: 0635 0551

CO2 probe (digital) with Bluetooth® including temperature and humidity sensor

CO₂ probe (digital) with Bluetooth^® including temperature and humidity sensor: for measuring the indoor air quality in offices, production areas or storage facilities – measuring range 0 to 10,000 ppm, -10 to +50 °C, 5 to 95% RH

Order Number: 0632 1551

CO2 probe (digital) including temperature and humidity sensor, wired

CO₂ probe (digital) including temperature and humidity sensor, wired: for measuring the indoor air quality in offices, production areas or storage facilities – measuring range 0 to 10,000 ppm, -10 to +50 °C, 5 to 95% RH

Order Number: 0632 1552

CO2 probe head including temperature and humidity sensor

CO₂ probe head including temperature and humidity sensor: for attachment to universal Bluetooth^® or cable handle – measuring range 0 to 10,000 ppm, -10 to +50 °C, 5 to 95% RH

Order Number: 0632 1550

CO probe (digital) with Bluetooth^®: for measuring carbon monoxide in indoor areas (e.g. boiler rooms) – measuring range 0 to 500 ppm

Order Number: 0632 1271

CO probe (digital), wired: for measuring carbon monoxide in indoor areas (e.g. boiler rooms) – measuring range 0 to 500 ppm

Order Number: 0632 1272

CO probe head: for attachment to universal Bluetooth^® or cable handle – measuring range 0 to 500 ppm

Order Number: 0632 1270

Globe thermometer (TC type K) for the measurement of radiant heat – measuring range 0 to + 120 °C

Order Number: 0602 0743

Humidity probes

Humidity/temperature probe (digital) with Bluetooth^®: for measurements in rooms, ventilation ducts, refrigeration systems and heat pumps – accuracy ±2% RH / ±0.5 °C, measuring range 0 to 100% RH / -20 to +70 °C

Order Number: 0636 9731

Humidity/temperature probe (digital), wired: for measurements in rooms, ventilation ducts, refrigeration systems and heat pumps – accuracy ±2% RH / ±0.5 °C, measuring range 0 to 100% RH / -20 to +70 °C

Order Number: 0636 9732

Humidity/temperature probe head: for attachment to universal Bluetooth^® or cable handle – accuracy ±2% RH / ±0.5 °C, measuring range 0 to 100% RH / -20 to +70 °C

Order Number: 0636 9730

High-precision humidity/temperature probe (digital) with Bluetooth^®: for measurements in cleanrooms and laboratories, and critical processes in the pharmaceutical, industrial and food sectors, as well as in storage, refrigerated and work rooms or in air conditioning/ventilation ducts - accuracy: ±(0.6% RH + 0.7 % of m.v.) (0 to 90% RH) / ±0.3 °C (+15 to +30 °C)

Order Number: 0636 9771

High-precision humidity/temperature probe (digital), wired: for measurements in cleanrooms and laboratories, and critical processes in the pharmaceutical, industrial and food sectors, as well as in storage, refrigerated and work rooms or in air conditioning/ventilation ducts - accuracy: ±(0.6% RH + 0.7 % of m.v.) (0 to 90% RH) / ±0.3 °C (+15 to +30 °C)

Order Number: 0636 9772

High-precision humidity/temperature probe head: for attachment to a universal Bluetooth^® or cable handle – accuracy: ±(0.6% RH + 0.7 % of m.v.) (0 to 90% RH) / ±0.3 °C (+15 to +30 °C)

Order Number: 0636 9770

Robust humidity/temperature probe (digital) for temperatures up to +180 °C, wired: for measurements in industrial exhaust air, in bulk materials and in climatic test cabinets – accuracy ±2% RH (2.1 to 98% RH) / ±0.4 °C (0.1 to +50 °C), measuring range 0 to 100% RH / -20 to +180 °C

Order Number: 0636 9775

testo 605i - thermohygrometer operated via smartphone

Order Number: 0560 2605 02

Pressure probes

testo 510i – differential pressure measuring instrument with smartphone operation

Order Number: 0560 1510

testo 549i - High-pressure gauge operated via smartphone

Order Number: 0560 2549 02

Temperature probes

testo 805i – infrared thermometer with smartphone operation

Order Number: 0560 1805

Waterproof immersion/penetration probe with NTC temperature sensor

Waterproof immersion/penetration probe (NTC temperature sensor) for temperature measurements in liquids and semi-solid media – measuring range -50 to +150 °C, accuracy ±0.2 °C (-25 to +74.9 °C)

Order Number: 0615 1212

Robust air probe with NTC temperature sensor

Robust air probe (NTC temperature sensor) with a short response time, for measuring air temperature – measuring range -50 to +125 °C, accuracy ±0.2 °C (-25 to +80 °C)

Order Number: 0615 1712

Clamp probe with NTC temperature sensor for measurements on pipes (Ø 6-35 mm)

Clamp probe (NTC temperature sensor) for measuring the surface temperature of pipes (Ø 6-35 mm) – measuring range -40 to +125 °C

Order Number: 0615 5505

Robust air temperature probe (TC type K) – measuring range: -60 to +400 °C

Order Number: 0602 1793

Fast-action surface probe with sprung thermocouple strip

Fast-action surface probe (TC type K) – measuring range -60 to +300 °C, short-term up to +500 °C

Order Number: 0602 0393

Fast-reaction paddle surface probe (TC type K) - Measuring range: - 0 to +300°C

Order Number: 0602 0193

Efficient, waterproof surface probe with small measurement head

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Order Number: 0602 0693

Fast-action, angled surface temperature probe (TC type K) for flat and uneven surfaces – measuring range: -60 to +300 °C

Order Number: 0602 0993

Magnetic probe (TC type K) - for surface temperatures

Surface temperature probe with magnet (TC type K), adhesive power 20 N – Measuring range -50 to +170°C

Order Number: 0602 4792

Magnetfühler, Haftkraft ca. 10 N, mit Haft-Magneten

Surface temperature probe with magnet (TC type K), adhesive power 10 N – Measuring range -50 to +400°C

Order Number: 0602 4892

Waterproof surface probe with widened measurement tip

Waterproof surface temperature probe with widened measuring tip (TC type K) for flat surfaces – measuring range -60 to +400 °C

Order Number: 0602 1993

Temperature probe with Velcro (TC Type K)

Order Number: 0628 0020

Pipe wrap probe for pipe diameter 5 to 65 mm

Temperature probe (TC type K) with clamping bracket for measurements on pipes with Ø 5-65 mm – Measuring range -60 to +130°C, briefly up to +280°C

Order Number: 0602 4592

Clamp probe (TC type K) for temperature measurements on pipes with Ø 15-25 mm – Measuring range -50 to +100°C, briefly up to +130°C

Order Number: 0602 4692

Efficient and fast-action immersion probe, waterproof

Flexible, fast-action immersion probe (TC type K) – measuring range: -60 to +1000 °C

Order Number: 0602 0593

Fast-action, waterproof immersion/penetration probe

Fast-action immersion/penetration probe (TC type K) – measuring range: -60 to +800 °C

Order Number: 0602 2693

Immersion measuring tip with TC plug type K - for fast temperature measurements

Order Number: 0602 5792

Flexible immersion measuring tip (TC type K, class 3) - measuring range -200 to +40°C

Order Number: 0602 5793

Immersion measurement tip, flexible, for measurements in air

Flexible immersion measuring tip (TC type K) - Measuring range: -40 to +1000°C

Order Number: 0602 5693

Waterproof immersion/penetration probe (TC type K) – measuring range -60 to +400 °C

Order Number: 0602 1293

Flexible, low-mass immersion measurement tip

Exceptionally fast temperature probe (TC Type K)

Order Number: 0602 0493

Wasserdichter Lebensmittelfühler aus Edelstahl (IP65)

Waterproof stainless steel food probe (TC type K) - measuring range: -60 to +400°C

Order Number: 0602 2292

Thermocouple with TC adapter, flexible, 800 mm long

Flexible thermoelectric couple (TC type K, glass fibre) – Measuring range: -50 to +400°C

Order Number: 0602 0644

Thermocouple with TC adapter, flexible, length 1500 mm

Flexible thermoelectric couple (TC type K, glass fibre) – measuring range -50 to +400°C

Order Number: 0602 0645

Thermocouple with TC adapter, flexible, 1500 mm long, PTFE

Flexible thermoelectric couple (TC type K, PTFE) – measuring range -50 to +250°C

Order Number: 0602 0646

Flexible temperature probe (digital) with Pt100 temperature sensor: for temperature measurements in locations that are difficult to access and in liquids – measuring range -100 to +260 °C

Order Number: 0618 0071

Robust, fast-action air probe (digital)

Order Number: 0618 0072

Immersion/penetration probe (digital) with Pt100 temperature sensor: for temperature measurements in liquids and pastes – measuring range -100 to +400 °C, accuracy up to ±0.15 °C

Order Number: 0618 0073

Glass-coated laboratory probe (Pt100 temperature sensor, digital) for temperature measurements in aggressive media – measuring range -50 to +400 °C

Order Number: 0618 7072

High-precision immersion/penetration probe (digital)

High-precision immersion/penetration probe (Pt100 temperature sensor, digital) for temperature measurements in liquids and pastes – measuring range -80 to +300 °C, accuracy up to ±0.05 °C

Order Number: 0618 0275

Pipe wrap probe with NTC temperature sensor for measurements on pipes (Ø 5-65 mm)

Pipe wrap probe (NTC temperature sensor) for measuring the surface temperature of pipes (Ø 5-65 mm) – measuring range -60 to +130 °C

Order Number: 0615 5605

testo 115i - Clamp thermometer operated via smartphone

Order Number: 0560 2115 02

Velocity

Hot wire probe (digital) with Bluetooth^®including temperature and humidity sensor: for measurements in ventilation ducts – measuring range 0 to +50 m/s, -20 to +70 °C, 5 to 95% RH

Order Number: 0635 1571

Hot wire probe (digital) including temperature and humidity sensor, wired: for measurements in ventilation ducts – measuring range 0 to +50 m/s, -20 to +70 °C, 5 to 95% RH

Order Number: 0635 1572

Hot wire probe head including temperature and humidity sensor: for attachment to extendable telescope for air velocity probes with universal handle – measuring range 0 to +50 m/s, -20 to +70 °C, 5 to 95% RH

Order Number: 0635 1570

Vane probe (Ø 16 mm, digital) with Bluetooth® including temperature sensor: for measurements in ventilation ducts – measuring range +0.6 to +50 m/s, -10 to +70 °C

Order Number: 0635 9571

Vane probe (Ø 16 mm, digital) including temperature sensor, wired: for measurements in ventilation ducts – measuring range +0.6 to +50 m/s, -10 to +70 °C

Order Number: 0635 9572

16 mm vane probe head including temperature sensor; for attachment to extendable telescope for air velocity probes with universal handle – measuring range +0.6 to +50 m/s, -10 to +70 °C

Order Number: 0635 9570

Hot wire probe (digital) including temperature sensor, wired: for measurements in ventilation ducts – measuring range 0 to 30 m/s, -20 to +70 °C

Order Number: 0635 1032

Vane probe (Ø 16 mm, digital), wired: for measurements in ventilation ducts – measuring range +0.6 to +50 m/s

Order Number: 0635 9532

Fume cupboard probe (digital), wired: for measuring inflow speed and exhaust air volume flow in fume cupboards according to DIN EN 14175-3/-4 – measuring range 0 to 5 m/s, 0 to +50 °C

Order Number: 0635 1052

High-precision vane probe (Ø 100 mm, digital) with Bluetooth^® including temperature sensor: for measurements at air outlets in cleanrooms and at plate outlets, ventilation grilles or swirl outlets – measuring range +0.1 to +15 m/s, -20 to +70 °C

Order Number: 0635 9371

High-precision vane probe (Ø 100 mm, digital) including temperature sensor, wired: for measurements at air outlets in cleanrooms, as well as at plate outlets, ventilation grilles or swirl outlets – measuring range +0.1 to +15 m/s, -20 to +70 °C

Order Number: 0635 9372

High-precision 100 mm vane probe head including temperature sensor: for attachment to extendable telescope for air velocity probes with universal handle or to a universal Bluetooth^® or cable handle – measuring range +0.1 to +15 m/s, -20 to +70 °C

Order Number: 0635 9370

Vane probe (Ø 100 mm, digital) with Bluetooth^® including temperature sensor: for measurements at ceiling/air outlets and at plate outlets, ventilation grilles or swirl outlets – measuring range +0.3 to +35 m/s, -20 to +70 °C

Order Number: 0635 9431

Vane probe (Ø 100 mm, digital) including temperature sensor, wired: for measurements at ceiling/air outlets and at plate outlets, ventilation grilles or swirl outlets – measuring range +0.3 to +35 m/s, -20 to +70 °C

Order Number: 0635 9432

100 mm vane probe head: for attachment to extendable telescope for air velocity probes with universal handle or to universal Bluetooth^® or cable handle – measuring range +0.3 to +35 m/s, -20 to +70 °C

Order Number: 0635 9430

testo 405i – thermal anemometer with smartphone operation

Order Number: 0560 1405

testo 410i – vane anemometer with smartphone operation

Order Number: 0560 1410

Thermische Strömungssonde (Hitzdraht) ~ 7,5 mm

Hot wire probe (Ø 7.5 mm, digital), incl. temperature sensor, fixed cable: for measurement in ventilation ducts, at plate outlets, ventilation grilles – measuring range 0 to 20 m/s, -20 to +70 °C

Order Number: 0635 1026

Hot ball probe (Ø 3 mm) - for flow and temperature

Hot ball probe (Ø 3 mm, digital), incl. temperature sensor, fixed cable: for measurement in non-directional air flows – measuring range 0 to 10 m/s, -20 to +70 °C

Order Number: 0635 1051

Sets

testo 440 Hot Wire Kit: for measuring air velocity, volume flow and temperature in ventilation ducts with a hot wire probe

Order Number: 0563 4400

testo 440 16 mm Vane Kit: for measuring air velocity and volume flow in ventilation ducts with a vane probe (Ø 16 mm)

Order Number: 0563 4401

testo 440 Lux Kit for measuring the illuminance in workplaces with a lux probe

Order Number: 0563 4402

testo 440 100 mm Vane Kit with Bluetooth^®: for measuring air velocity, volume flow and temperature at air outlets

Order Number: 0563 4403

testo 440 Humidity Kit with Bluetooth^®: for measuring humidity and temperature in storage, refrigerated and work rooms, in ventilation ducts and also on refrigeration systems and heat pumps using the humidity/temperature probe with Bluetooth

Order Number: 0563 4404

testo 440 CO₂ Kit with Bluetooth^®: for measuring CO₂ concentration, humidity and temperature in indoor areas and for evaluating the indoor air quality (IAQ) with a CO₂ probe

Order Number: 0563 4405

testo 440 Air Flow ComboKit 1 with Bluetooth®t 1 with Bluetooth

testo 440 Air Flow ComboKit 1 with Bluetooth^®: for measuring air velocity, volume flow and temperature in ventilation ducts (with Ø 9 mm hot wire probe) and at air outlets (with Ø 100 mm vane probe)

Order Number: 0563 4406

testo 440 Air Flow ComboKit 2 with Bluetooth®

testo 440 flow combo-kit 2 with Bluetooth^®: for measuring flow, volume flow and temperature in ventilation ducts (with Ø 16 mm vane probe) and at air outlets (with Ø 100 mm vane probe)

Order Number: 0563 4407

testo 440 Indoor Comfort ComboKit with Bluetooth^®: for evaluating the indoor air quality (CO₂ concentration, temperature and humidity) with CO₂ probe and for determining the degree of turbulence and draught risk in workplaces according to EN ISO 7730 / ASHRAE 55 (with turbulence probe)

Order Number: 0563 4408

testo 440 laboratory kit: for measuring the temperature in aggressive media with Pt100 laboratory probe

Order Number: 0563 4412

Accessories

BLUETOOTH®-/IRDA printer with Bluetooth® and IrDA interface for printing out measurement data and graphs from compatible Testo measuring instruments or Testo Apps

Order Number: 0554 0621

Measuring tripod for IAQ and comfort level measurements, to ensure standard-compliant, secure positioning of measuring instrument and probes including transport bag

Order Number: 0554 1591

Measuring tripod for flow measurements, for standard-compliant and secure positioning of probes

Order Number: 0554 1592

Universal Bluetooth® handle for connecting probe heads

Bluetooth^® handle for connecting probe heads: transmits readings conveniently via Bluetooth

Order Number: 0554 1111

Universal cable handle for connecting probe heads

Cable handle for connecting probe heads: transmits readings via cable

Order Number: 0554 2222

testovent 417 volume flow straightener set

testovent 417 flow straightener set for volume flow measurement, consisting of the testovent 417 volume flow straightener and the testovent 417 funnel set

Order Number: 0554 4173

testovent 417 funnel set for volume flow measurement, consisting of a funnel for plate outlets (Ø 200 mm) and a funnel for ventilation grilles (330 x 330 mm), used with 100 mm vane

Order Number: 0563 4170

Flow straightener testovent 417

Order Number: 0554 4172

testo 318 - Endoscope

Order Number: 0563 3185

Control and adjustment set for Testo humidity probes

Control and calibration kit for Testo humidity probes

Order Number: 0554 0660

Accessories for measuring instrument

USB mains unit incl. cable

Order Number: 0554 1105

Certificates

ISO humidity calibration certificate; with 3 measuring points: 11.3 / 50 / 75.3 %RH at +25°C

Order Number: 0520 0166

ISO humidity calibration certificate; with 2 measuring points: 11.3 and 75.3 %RH at +25°C

Order Number: 0520 0006

DAkkS humidity calibration certificate; with 3 measuring points: 11.3 / 50 / 75.3 %RH at +25 °C

Order Number: 0520 0266

DAkkS humidity calibration certificate; with 2 measuring points: 11.3 and 75.3 %RH at +25 °C

Order Number: 0520 0206

Sensor heads

16 mm vane probe head including temperature sensor; for attachment to extendable telescope for air velocity probes with universal handle – measuring range +0.6 to +50 m/s, -10 to +70 °C

Order Number: 0635 9570

Order Number: 0635 9370

Order Number: 0635 9430

Order Number: 0635 1570

Humidity/temperature probe head: for attachment to universal Bluetooth^® or cable handle – accuracy ±2% RH / ±0.5 °C, measuring range 0 to 100% RH / -20 to +70 °C

Order Number: 0636 9730

High-precision humidity/temperature probe head: for attachment to a universal Bluetooth^® or cable handle – accuracy: ±(0.6% RH + 0.7 % of m.v.) (0 to 90% RH) / ±0.3 °C (+15 to +30 °C)

Order Number: 0636 9770

CO₂ probe head including temperature and humidity sensor: for attachment to universal Bluetooth^® or cable handle – measuring range 0 to 10,000 ppm, -10 to +50 °C, 5 to 95% RH

Order Number: 0632 1550

CO probe head: for attachment to universal Bluetooth^® or cable handle – measuring range 0 to 500 ppm

Order Number: 0632 1270

Transport and Protection

Combi-case for testo 440 and multiple probes; for protecting and transporting the testo 440 (dP) air velocity and IAQ measuring instrument and multiple probes

Order Number: 0516 4401

Service case for volume flow measurement; for protecting and transporting the testo 440 (dP) air velocity and IAQ measuring instrument, probes and accessories for measuring volume flow

Order Number: 0516 4900

Applications

Long-term monitoring of indoor air quality

Poor indoor air quality due to excessive concentrations of CO₂ can cause tiredness, lack of concentration and even illness. With its menu for recording readings, the testo 440 air velocity and IAQ measuring instrument is ideal for monitoring the indoor air quality. Enter the measurement time and the measuring cycle – and, for example, track the change in CO₂ concentration or humidity and temperature values over the course of the day. Simply choose between probes with Bluetooth or fixed cable for CO₂, CO (please order separately) or humidity.

Measure CO2 concentration for assessing indoor air quality with CO2 probe and testo 440

Turbulence measurement in accordance with EN ISO 7730 / ASHRAE 55

Determine the degree of turbulence and the draught risk in the workplace: draught restricts the comfort level and is the most common cause of complaints about the indoor climate. The turbulence probe (please order separately) measures air velocity and air temperature, and automatically calculates the draught risk and the degree of turbulence in accordance with EN ISO 7730/ASHRAE 55.
For convenient measurements at varying heights, we recommend using our measuring tripod for comfort level measurement (please order separately). This makes it very easy to position turbulence probes in compliance with the standards.

Determining the degree of turbulence with turbulence probe and testo 440

Convenience and maximum flexibility for duct and outlet measurements

With our large range of air velocity probes (please order separately), you can carry out simple and convenient measurements even at locations that are difficult to access in ventilation ducts or at air outlets:
you will even find it easy to carry out measurements in particularly large ducts. This is because the extendable telescope on the hot wire and vane probe (Ø 16 mm) with universal handle can be further extended using the telescope extension – enabling you to attain a total length of 2 metres.
Carry out measurements at air/ceiling outlets effortlessly and without using a ladder. Fit your vane probe (Ø 100 mm) with the telescope with 90° angle and, if necessary, with the telescope extension (both can be ordered separately).
Greater freedom thanks to Bluetooth: the air velocity probes with Bluetooth have no inconvenient cable connection to the measuring instrument, and they transmit readings up to a distance of 20 m. Press the button on the probe to operate the measuring instrument – for example, to start and stop a series of measurements (timed mean calculation).
Attach the testo 440 air velocity and IAQ measuring instrument to metal surfaces (e.g. ducts) easily using the practical magnets.
Benefit from fast calculation of the volume flow: in the “volume flow” measurement menu of the multifunction measuring instrument, configure the dimensions and geometry of the duct cross-section – the measuring instrument shows you the volume flow straight away.

Volumetric flow measurement in ventilation ducts with vane probe (Ø 16 mm) and testo 440

Range of probes for cleanrooms and laboratories

The testo 440 air velocity & IAQ measuring instrument is also ideal for a wide variety of applications in cleanrooms and laboratories in conjunction with the following probes:

High-precision flow measurement in fume cupboards with the fume cupboard probe
Thanks to the low start-up speed of 0.1 m/s, the high-precision vane probe (Ø 100 mm) is ideal for laminar flow measurements in cleanrooms. It is available as a variant with Bluetooth or with fixed cable
To measure the humidity in cleanrooms, we recommend the high-precision humidity/temperature probe (0636 9771 or 0636 9772). With an accuracy of ±(0.6 %RH + 0.7% of m.v.) (0 to 90 %RH), it also meets the requirements for humidity measurements in this particularly sensitive area
Use the high-precision digital Pt100 temperature probes, for example, for high-precision comparative measurements in calibration laboratories, temperature measurements in chemical laboratories or in the cosmetics industry as well as for determining the temperature distribution in refrigerators and conditioning cabinets

Volumetric flow measurement in fume cupboards with fume cupboard probe and testo 440

Downloads

Product Brochures

Manuals

Software

Firmware update testo 440 (v1.0.8, 3.15 MB) see instruction manual for instructions on how to update your device

Buy now

testo 440 Humidity Kit with Bluetooth®

testo 440 Humidity Kit with Bluetooth®

Details

Product Description

Products in set

Delivery Scope

Technical Data

testo 440 - Air velocity and IAQ measuring instrument

Humidity/temperature probe (digital) - with Bluetooth®

Probes

Comfort probes

Humidity probes

Pressure probes

Temperature probes

Velocity

Sets

Sets

Accessories

Accessories

Accessories for measuring instrument

Certificates

Sensor heads

Transport and Protection

Applications

Long-term monitoring of indoor air quality

Turbulence measurement in accordance with EN ISO 7730 / ASHRAE 55

Convenience and maximum flexibility for duct and outlet measurements

Range of probes for cleanrooms and laboratories

Downloads

Product Brochures

Manuals

Software

testo 440 Humidity Kit with Bluetooth®

testo 440 Humidity Kit with Bluetooth^®

testo 440 Humidity Kit with Bluetooth^®

Humidity/temperature probe (digital) - with Bluetooth^®

testo 440 Humidity Kit with Bluetooth^®